Five Common Causes of Refractory Failure and How to Fix Them
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All process heaters operate at high temperatures and are constructed with process tubes inside a refractory-lined enclosure, which is heated by radiant heat from gas-firing or, less commonly, oil-firing.
Refractory linings are insulating and minimise heat loss, making them essential to retaining the
high-temperature environment. However, when subjected to high temperatures, refractory
can deteriorate and potentially lead to failure if remedial work is not carried out.
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